Lubricator.



No. 864,876. PATBNTED SEPT. 3, 1907. H. A. WEIHMAN.

LUBRIGATOR.

APPLIUATION FILED APR.6, 1906.

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UNITED STATES PATENT OFFICE.

HENRY A. WEIHMAN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO EDWARDDIETERLA, OF CHICAGO, ILLINOIS.

LUBRICATOR.

Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed April 6,1906. Serial No. 310,322.

To all whom it may concern:

Be it known that I, I'IENRY A. WEIHMAN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Lubricators, of whichthe following is a full, clear, and exact specification.

This invention. relates to improvements in lubricators, and moreparticularly to that class of lubricators wherein the lubricant isforced from the source of supply to the part to be lubricated, and theobject of the same is to construct an improved device of this characterin which the amount of lubricant supplied to the various parts may beregulated.

A further object is to construct an improved device of this characterwhich may be readily inserted into a tank or receptacle containing thelubricant and which may be operated directly from the other parts of themachinery or by hand.

A further object is to construct an improved device of this charactercomprising a plurality of force feeders or pumps which may beindependently adjusted to regulate the amount of lubricant supplied bythe pumps, each pump being provided with an indicator, whereby theamount of lubricant being supplied thereby may be readily ascertained.

A further object is to provide an improved device of this characterwhich will be sectional in construction.

A further object is to construct an improved device of this characterwhich will be simple, and cheap in construction, and effective inoperation.

To the attainment of these ends and the accomplishment of other new anduseful objects as will appear, the invention consists in the features ofnovelty in the construction, combination and arrangement of the severalparts hereinafter more fully described and claimed and shown in theaccompanying drawing, illustrating an exemplification of this invention,and in which Figure l is a vertical sectional view on line 11 of Fig. 2,illustrating in dotted lines a tank into which the lubricator isinserted. Fig. 2 is an elevation of a lubricator constructed inaccordance with the principles of this invention. I

In this exemplification of the invention there is shown a plurality oflubricators secured together, and as the construction of eachindependent lubricator or section is identical, the description of onewill apply equally as well to all of them.

Referring to the drawing, the numeral 5 designates the base or body ofthe lubricator or pump which is provided with a vertical aperture orpassage 6 extending therethrough, preferably adjacent the centerthereof, and a horizontal aperture or passage 7 extending through oneface thereof, terminating adjacent and communicating with the passage01' aperture 6. This passage or aperture 7 is preferably located at apoint midway of the top and bottom of the base or body 5, and isprovided at its front end with screw threads adapted to receive a plugor screw 8, for closing the outer end thereof.

The lower portionof the passage or aperture 6 is preferably enlarged asat 9, for the reception of a valve 10, which is preferably shown in theshape of a ball, and 11 is a plug inserted into and secured within thebottom of the enlarged space or portion 9. This plug is provided with anaperture 12, which communicates with the enlargement 9, and a seat atthe upper end thereof upon which the ball 10 rests, and is adapted to beseated for closing the aperture 12 therein. The upper portion of thepassage or aperture 6 is also preferably enlarged, and within thisenlarged portion is a piston or plunger 13, which is adapted toreciprocate therein and also between vertical guides or ways 14, securedto the top of the base or body 5. A second vertical passage 15 opensthrough the top of the body or base 5 and is preferably parallel withthe passage 6, and is pro vided with a reduced portion 16, whichcommunicates with the passage 7 and forms a seat for a valve 17, whichis preferably in the shape of a ball. The upper end of the aperture orpassage 15 is closed in any suitable manner such as a screw plug 18. Anaperture 19 also passes through one side of the base or bottom 5,parallel with the aperture 7, and communicating with the aperture 01'passage 15. A pipe or tube 20 is secured by one end to communicate withthe aperture 19, in any desired manner, such as a coupling 21, which isheld from displacement by means of a jam nut 22.

Pivot-ally connected to the upper end of the piston or plunger 13 is ayoke 23, which is preferably of a width to stand between the guides orways 14, whereby said yoke may be prevented from displacement. The upperend of the arm 24 of the yoke 23 is preferably bent outward as at 25,and secured to the extremity thereof is one end of a spring 26,preferably a coil spring, the other end of which is secured to the baseor bottom 5. Extending from the arm 27 is a projection 28, to form ashoulder 28, the lower portion of the face thereof being straight as at29, and the upper portion being beveled or inclined as at 30. Projectingbeyond the outer face of the arm 27, preferably adjacent the upper endthereof, is an arm or extension 31, for a purpose to be set forth. Inuse any number of these sections may be coupled together, and for thepurpose of illustration there is shown in Fig. 2, two of these sectionscoupled or secured together. Any suitable means may be employed for thispurpose, but it is preferred to employ a frame, comprising standards .orsupports 32, which are secured by one end to the base or body portion 5.These standards are of a suitable height to extend above the top of thearms of the yokes 23, and secured across the top thereof is a bar orplate 33. Journaled in these standards or supports is a shaft 34, whichis so located as to stand between the arm 24 and the projection 28 onthe arm 27 of the yoke. This shaft may be held from longitudinaldisplacement in any suitable manner, such as by means of collars 35secured thereto, preferably on the outside of the standards or supports.

Secured to the shaft at any suitable point, preferably between two ofthe yokes 23, is a disk or collar 36, which is provided withdiametrically opposite lateral extensions or pins 37 on the sidesthereof, which are preferably parallel with the shaft 34.

When in position, the normal tendency of the spring 26 is to hold thestraight portion 29 of the extension 28 against the shaft 34, or intosuch a position that the shoulder 28 will stand within the path ofmovement of the extensions or pins 37 on the disks 36. Thus it will beseen that when the shaft 34 is rotated these disks and extensions formcams, by means of which said yokes may be raised against the tension ofthe spring 26. After the pins or extensions have passed out ofengagement with the shoulders 28, the spring 26 will cause the yoke 23,and the plunger or piston 13 carried thereby, to spring back into place,thereby forcing the lubricant which has been sucked up by the upwardstroke thereof, through the aperture 12, by the valve 10, and into thepassage 6, out through the passage 7, through 16, past the valve 17 intothe passage or chamber 15, out through the opening or aperture 19, andthrough the pipe 20, to the bearing or part to be lubricated; the valve10 being seated by the pressure of the lubricant thereon when theplunger or piston is released, The pins or extensions 37 on the disksbeing disposed opposite to each other, will cause the plungers orpistons 13 to work alternately, but it is obvious that if only onesection is used the lubricant would be forced out only once during acomplete revolution of the shaft 34, This shaft may be driven in anydesired manner either by means of a belt engaging the pulley 38, or bymeans of the crank pin 39. Obviously the shaft may be oscillated backand forth and produce the same result, the pivoted connection of theyoke 23 with the piston 13 permitting such motion.

The free end of the pipe 20 may be supported in any suitable manner, butpreferably by passing the same through the plate or bar 33 and holdingit from displacement by means of the nuts 40, on either side thereof.Suitable pipes may be connected to the free end thereof which lead toand discharge into the bearing or part to he lubricated.

Passing through the bar or plate 33 is a screw 41, provided with atapering point or extremity 42, and'a head 43, by means of which thescrew may be adjusted. This screw arranged in such a position withrelation to the yoke 23, that the point 43 will engage and stand withinthe path of the forward movement of the inclined face 30 of theextension 28 on arm 27, and may be adjusted vertically with relationthereto to engage the same at any desired point, and is held in itsadjusted position by any suitable means such as a nut 44. The purpose ofthis screw is to adjust the movement and throw of the piston or plunger13, thereby regulating the amount of lubricant discharged by thedownward stroke thereof. If the point of the screw be moved in closeproximity to the shaft 34, the yoke 23 will be tilted on its pivot,thereby throwing the shoulder 28 out of the path of movement of theextension or pin 37. If the screw be adjusted so that the point thereofwill not engage the inclined face 30, the pin 37 will cause the yoke toraise the plunger 13 to its highest point, thereby discharging orforcing out the greatest amount of oil. Thus by adjusting the point ofthe screw so to engage the face at any point intermediate theextremities thereof, the plunger or piston will be correspondinglyraised according the point at which the pin or extension 37 disengagesthe shoulder 28.

In operation the framework is inserted into a tank (shown in Fig. 1 indotted lines) containing the oil or lubricant, with the bar or plate 33thereof serving as a cover or closure for the tank. The base or bottom 5of the lubricators is preferably supported slightly above the bottom ofthe tank in any suitable manner so as to permit the entrance of thelubricant into the passage 12 of the plugs 11, the end of the shaftprojecting through the side of the tank with the pulley or crank 38thereon. If two or more of the sections are used the respective screws41 may be adjusted and the shaft 34 rotated, thereby causing theplungers to suck in the lubricant and force the same through the pipe 20in the same manner as an ordinary pump. It often becomes necessary tolubricate one part more than the other, and. in adjusting the screws 41,to so regulate the throw of the respective piston or plunger 13, isdesirable to ascertain how much of a stroke the piston has and whatamount of oil is being supplied thereby. For this purpose there isprovided a gage 45 adjacent each of the screws 41, preferably on theplate or bar 33. Passing through the plate or bar 33, and in proximityto the gage, is an indicator 46, which is provided with a head orenlarged end 47, which rests upon the arm or extension 31 carried by theyoke 23, and surrounding the indicator, and disposed between the plateor bar 33 and the head or enlargement 4'7, is a spring 48, which tendsto keep the indicator normally in engagement with the arm or extension31. As the yoke 23 is raised, the indicator 46 is also raised, therebyindicating the length of each stroke of the respective pisten or plungerand the amount of lubricant being supplied thereby.

In order that the invention might be fully under stood, the details ofan embodiment thereof have been thus specifically described, but

What is claimed as new is:

1. In a force-feed lubricator, the combination of a tank, a pump, aplunger, a crank, a yoke yieldingly supported by the plunger, and meanson said yoke adapted to be engaged by the crank when rotated tointermittently raise the plunger.

2. In a force-feed lnbricator, the combination or" a tank, a pump, aplunger, a crank, a member yieldingly supported by the plunger, means onsaid member adapted to be engaged by the crank when rotated tointermittently raise the plunger, and means for returning said plunger.

3. In a force-feed lubricator, the combination of a tank, a pump, aspring-controlled plunger for the pump, a yoke pivotally connected tothe plunger, a shaft journaled adjacent the yoke, and means on the shaftadapted to en gage the yoke for intermittently raising the plungeragainst the tension of the spring when the shaft is rotated.

4. In a force-feed lubricator, the combination of a tank,-

a pump within the tank, a plunger for the pump, a yoke pivoted to theplunger, a shaft, inter-engaging means on the shaft and one of the armsof the yoke for raising the plunger when the shaft is rotated, and aspring engaging the other arm of the yoke for normally holding theinterengaging means into cooperating position.

5. In a force-feed lubricator, the combination of a tank, a pump, aplunger in the pump, a yoke pivoted to the plunger, a shaft standingbetween the arms of the yoke, there being a projection on one arm of theyoke, a spring engaging the other arm for normally holding theprojection against the shaft, and means on the shaft adapted to engagethe projection for raising the plunger when the shaft is rotated.

G. In a foree-feed lubricator, the combination of a tank,

a pump, a plunger, for the pump, a yoke pivoted to the plunger, a shaftstanding between the arms of the yoke, there being a shoulder on one ofsaid arms adjacent the shaft, means on the shaft adapted to engage theshoulder for raising the yoke and plunger when the shaft is rotated, anda spring engaging the other arm of the yoke for holding the shouldernormally in the path of movement of the engaging means on the shaft, andfor retracting the plunger.

7. In a force-feed lubricator, the combination of a tank, a pump, aplunger for the pump, a yoke pivoted to the plunger, guides for saidyoke, a shaft journaled adjacent the yoke, and means on the shaftadapted to engage and intermittently raise the plunger when the shaft isrotated.

S. In a force-feed lubricator, the combination of a pump embodying aplunger provided with a flexible portion, a lifting means forsaidplunger engaging the flexible portionysaid portion being disengagedfrom the lifting means, separate means for varying the time of disengagement, and means for returning the plunger when disengaged.

9. In a force-feed lubricator, the combination of a tank, a pump, aplunger, a yoke pivoted to the plunger, guides for the yoke, a shaftstanding between the arms, there being a shoulder on one of the, armsadjacent the shaft, a crank on the shaft, adapted to engage the shoulderfor raising the plunger when the shaft is rotated, and means engagingthe yoke for normally holding the shoulder in the path of movement ofthe crank, and for retracting the plunger.

10. In a forcefeed lubricator, the combination of a pump, a plunger, ayoke pivotally connected to the plunger, a crank adjacent the yoke,there being a shoulder on one arm of the yoke adapted to be engaged bythe crank to raise the plunger when said crank is rotated, meansengaging the other arm of the yoke for normally holding the shoulder inthe path of movement of the crank, and means whereby the point ofdisengagement of the crank and shoulder may be varied.

11. In a force-feed lubricator, the combination of a tank, a pump withinthe tank, a plunger, a yoke pivotally connected to the plunger, a crankjournaled adjacent one arm of the yoke, there being a shoulder on saidarm adapted to be engaged by the crank when rotated for raising theplunger, the upper portion of said arm being beveled or inclined, anadjustable member adapted to engage the inclined portion of the arm forvarying the point of disengagement of the crank and shoulder, and meanstending to normally hold the shoulder in the path of movement of thecrank.

12. In a force-feed lubricator, the combination of a tank, a framework,a pump supported by the frame, a plunger for the pump, a yoke pivotallyconnected to the plunger, a shaft journaled in the frame, a crank on theshaft adjacent the yoke, there being a shoulder on one arm of the yokeadapted to be engaged by the crank when rotated for raising the plunger,the upper portion of said arm being beveled or inclined, means fornormally holding the shoulder in the path of movement of the crank, andan adjustable member supported by the frame and adapted to engage theinclined face of the yoke arm for varying the point of disengagement ofthe crank and shoulder to regulate the stroke of the plunger, said framebeing adapted to be placed within the tank with the top thereof forminga closure for the tank.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 4th day of April, A. D.1906.

HENRY A. WEIIIMAN.

Witnesses .I. H. JOCHUM, J12, CHAS. H. SEEM.

